Sharma, B. P. <br/><br/>
World great environmental scientists 

 - New Delhi  Centrum Press  2013 
 - 311p. 
<br/><br/><label>ISBN: </label> RS 3000.00 
<br/><br/><label>Source: </label> RS 3000.00 
<br/><br/><label>Dewey Class. No.: </label>925 SHA